Issaquah is a city in King County, Washington, home to about 39,591 people across 12 square miles. Its ZIP codes are 98027 and 98029.
Homes sold for a median of $516 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Issaquah; also Mirrormont and East Renton Highlands
Mostly Issaquah; also Sammamish
Each card is that ZIP code’s whole market, including any part outside Issaquah. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Issaquah’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Seattle–Tacoma International Airport (SEA)15 miles away |
|---|---|
| Nearest city of 250,000+ | Seattle, WA17 miles away |
Straight-line distances from the center of Issaquah; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Issaquah had 40,051 residents in the 2020 census, up 257% since 2000.
It’s the 33rd largest of 628 towns in Washington by population.
King County grew from 110,053 residents in 1900 to 2,269,675 in 2020.
King County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 77°F in summer, and winter lows average 35°F. About 63.1 inches of rain and melted snow fall in a typical year, with about 4 inches of snow.
Source: NOAA 1991–2020 climate normals, Snoqualmie Falls, WA weather station (8 miles away).
1,305,947 jobs at 70,376 businesses in King County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1,034 doctors and other health care providers list an office in Issaquah’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 84 |
|---|---|
| Specialist doctors | 112 |
| Dentists | 102 |
| Nurse practitioners and physician assistants | 133 |
| Mental health providers | 316 |
| Physical and occupational therapists | 221 |
| Optometrists | 26 |
| Chiropractors | 40 |
| Pharmacies | 21 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (31 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums (2 nearby)
Theaters and performance venues (4 nearby)
Counts are within about 2.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1892.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Issaquah School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Holly Street Early Learning CenterIssaquah | Pre-K | 89 | Public | 2.1 mi |
| Issaquah Preschool AcademyIssaquah | Pre-K | 42 | Public | 2.1 mi |
| Issaquah Special ServicesIssaquah | Pre-K–12 | 67 | Special Education | 3.1 mi |
| Challenger ElementaryIssaquah | K–5 | 350 | Public | 4.1 mi |
| Clark ElementaryIssaquah | K–5 | 586 | Public | 1.4 mi |
| Endeavour Elementary SchoolIssaquah | K–5 | 473 | Public | 3.8 mi |
| Grand Ridge ElementaryIssaquah | K–5 | 558 | Public | 2.0 mi |
| Issaquah Valley ElementaryIssaquah | K–5 | 646 | Public | 2.2 mi |
| Beaver Lake Middle SchoolIssaquah | 6–8 | 699 | Public | 4.3 mi |
| Cougar Mountain Middle SchoolIssaquah | 6–8 | 616 | Public | 2.8 mi |
| Issaquah Middle SchoolIssaquah | 6–8 | 808 | Public | 1.0 mi |
| Pacific Cascade Middle SchoolIssaquah | 6–8 | 605 | Public | 2.9 mi |
| Gibson Ek High SchoolIssaquah | 9–12 | 198 | Public | 1.3 mi |
| Issaquah High SchoolIssaquah | 9–12 | 2,419 | Public | 0.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| All-Star AcademyIssaquah | Pre-K–6 | 5 | Nonsectarian | 3.4 mi |
| Bright Horizons at the HighlandsIssaquah | Pre-K–5 | 6 | Nonsectarian | 1.9 mi |
| Gilman Montessori AcademyIssaquah | Pre-K | 4 | Nonsectarian | 3.0 mi |
| Issaquah Montessori SchoolIssaquah | Pre-K–K | 10 | Nonsectarian | 2.9 mi |
| Lakeside Montessori SchoolIssaquah | Pre-K–K | 2 | Nonsectarian | 4.3 mi |
| Snoqualmie Springs SchoolIssaquah | Pre-K–2 | 71 | Nonsectarian | 3.2 mi |
| St Joseph School-- Issaquah and SnoqualmieIssaquah | Pre-K–7 | 165 | Roman Catholic | 1.9 mi |
| Synergy Learning AcademyIssaquah | Pre-K–K | 9 | Nonsectarian | 3.4 mi |
| Brightmont Academy - SammamishIssaquah | 1–12 | 44 | Nonsectarian | 3.3 mi |
| Dartmoor SchoolIssaquah | 3–12 | 78 | Nonsectarian | 2.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Sammamish, Mirrormont and East Renton Highlands.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.